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Join Date:

08-06-2011

Last Activity:

08-22-2017 10:55 AM

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  • Posted in thread: What WW2 hardware would you save? on 08-13-2017 at 01:38 PM
    A Monarch 10ee as well as the other manual machine tools that made those planes and engines. I
    understand that there are quite a few radioactive Monarch lathes left from plutonium production
    buried on...

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 07-19-2017 at 04:26 PM
    I don't see any large manufacturers putting money into basic piston engine research. The
    current crop of aircraft piston engines use the best 1940s technology. Turbines have completely
    replaced piston...

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 07-18-2017 at 01:42 PM
    That might be true, but it all depends on battery development. There are some
    [ame="https://www.youtube.com/watch?v=ohig71bwRUE"]great concepts[/ame] being tested with
    current batteries. A respected e...

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 07-17-2017 at 01:26 PM
    Several people are developing a [ame="https://www.youtube.com/watch?v=Hodd8oyiawk"]sliding
    cylinder two stroke[/ame] that is at least partially throttled by sliding the exhaust and
    transfer ports. Pow...

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 07-16-2017 at 09:55 AM
    The catch is that there's a much better solution to the emissions problem; electric vehicles.
    We'll see how that develops, but I expect that children looking at today's IC engines in
    museums will marv...

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 07-15-2017 at 04:58 PM
    This principle has been tried many times and in many ways. One of the most recent is the Lotus
    Omnivore engine. In my opinion all these systems defeat the most important virtue of the small
    crankcase ...

  • Posted in thread: Milling aluminium alloys on 07-07-2017 at 01:59 PM
    I should add that your work piece and method of holding needs to be solid as well. Many of the
    small parts for our engines are very delicate and need very gentle stock removal. I learned
    this again th...

  • Posted in thread: Milling aluminium alloys on 07-05-2017 at 04:25 PM
    In the 1970s I watched a 4" carbide face mill absorb 50 hp in an aircraft spar mill. Aluminum
    flew like wood chips. I personally have used a wood router to machine aluminum plate with a
    carbide bit be...

  • Posted in thread: Milling aluminium alloys on 07-04-2017 at 01:45 PM
    Run as high a spindle speed as your mill has. You can machine aluminum at wood cutting speeds.
    I also use WD 40 as a cutting fluid, though kerosene is a less expensive option.Lohring Miller

  • Posted in thread: Cylinder, piston and fuel for internal combustion engines ! on 06-22-2017 at 12:23 PM
    Cylinder and liner materials depend a lot on bore diameter. A lot of small (under 25 mm bore)
    cylinders used cast iron pistons with a lapped fit in a steel cylinder. Lots of oil (20% castor
    oil) in th...

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